Rate control in yeast protein synthesis at the population and single-cell levels.

Rate control in yeast protein synthesis at the population and single-cell levels.
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在群体和单细胞水平上控制酵母蛋白质合成的速率。

DOI:
10.1042/bst20150169
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发表时间:
2015
影响因子:
3.9
通讯作者:
Dacheux E
Dacheux E
中科院分区:
生物学3区
文献类型:
--
作者:
Dacheux E

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酵母菌将大约76%的能量预算用于蛋白质合成,因此这一过程的效率和控制对生物体的生长和健康至关重要。我们现在已经对真核翻译机制的组成部分有了详细的遗传、生化和生物物理知识。然而,这些信息本身并不能给我们一个令人满意的图景,说明整个系统是如何受到控制的。这就是定量系统分析可以改变我们对生物资源管理以及这与细胞生理学和进化的关系的理解的地方。这种更加面向系统的翻译控制方法的一个重要方面是由基因表达噪声产生的细胞群体的固有异质性。在这篇简短的回顾中,我们讨论了这样一个事实,尽管我们对翻译机制的绝大多数知识是基于对每个包含数亿个细胞的样本的实验分析,但实际上每个细胞在其组成和控制属性方面都是独一无二的。我们已经进入了一个新时代,在这个时代,对细胞系统异质性的研究有望为许多(以前无法回答的)关于细胞生理学和进化的问题提供答案。
Yeast commits approximately 76% of its energy budget to protein synthesis and the efficiency and control of this process are accordingly critical to organism growth and fitness. We now have detailed genetic, biochemical and biophysical knowledge of the components of the eukaryotic translation machinery. However, these kinds of information do not, in themselves, give us a satisfactory picture of how the overall system is controlled. This is where quantitative system analysis can enable a step-change in our understanding of biological resource management and how this relates to cell physiology and evolution. An important aspect of this more system-oriented approach to translational control is the inherent heterogeneity of cell populations that is generated by gene expression noise. In this short review, we address the fact that, although the vast majority of our knowledge of the translation machinery is based on experimental analysis of samples that each contain hundreds of millions of cells, in reality every cell is unique in terms of its composition and control properties. We have entered a new era in which research into the heterogeneity of cell systems promises to provide answers to many (previously unanswerable) questions about cell physiology and evolution.
信使 RNA 翻译成蛋白质的动力学。
DOI: --
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DOI: 10.1093/nar/gkaa240
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